Default [Q] i9305 - omni official 20131209 the device temperature hits 50C

i9305 - omni official 20131209 the device temperature hits 50C.
I dont know why the temperature is so high and the battery drains a lot /0\
Current device: Samsung Galaxy S3 LTE i9305
Rom: Carbon-Nightly-cmbased-11

CyanogenMod 11
4.4.2 Official Nightlies

Carbon ROM
4.4.2 Official Nightlies

VanirAOSP
4.4.2 Official Nightlies STILL under development